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Antenna structure

A technology of antenna structure and radiating components, applied in antennas, loop antennas, antenna grounding devices, etc., can solve the problems of small bandwidth, high cost, antenna radiation power attenuation, etc.

Inactive Publication Date: 2015-05-13
ARCADYAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the known dual-frequency loop antenna 1 also includes a small bandwidth, and is only applicable to a bandwidth of about 250MHz at a center frequency of 900MHz, and a bandwidth of about 170MHz at a center frequency of 1800MHz.
In addition, the known dual-frequency loop antenna 1 uses printed circuit board and etching technology, and is formed together with the ground plane 11 on the FR4 glass substrate 10 with a thickness of 0.8 mm. The manufacturing process is relatively complicated and the cost is relatively expensive. Radiated power also causes attenuation

Method used

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Embodiment Construction

[0127] Please refer to FIG. 2( a ), which is a schematic diagram of the antenna structure of the first embodiment of the present application. The antenna structure 2 includes a radiation element 22 , and the antenna structure also includes a ground portion 20 , a feed portion 21 , a transmission line 24 , and a wire 26 . A signal 25 with a frequency f1 is fed into the transmission line 24, the transmission line 24 is connected to a feed point 2110, the antenna structure 2 acts on the signal 25 with the frequency f1, the radiating element 22 has a hollowed-out part 220, the The hollowed out portion has a corner 2200, wherein the corner 2200 is related to the frequency f1. The radiation element 22 includes a first inner edge 2201, a second inner edge 2202, a third inner edge 2203, a first outer edge 2204, a second outer edge 2205, and an inner edge 221 of the radiation element 22 . The first inner edge 2201 and the second inner edge 2202 form the corner 2200, the third inner e...

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Abstract

The invention discloses an antenna structure. The antenna structure acts with a signal with a frequency. An antenna comprises a radiating component, wherein the radiating component is provided with a hollowed part; the hollowed part is provided with a corner; the radiating component comprises a first inner edge, a second inner edge, a third inner edge, a first outer edge and a second outer edge; the first inner edge, the second inner edge and the third inner edge are edges of the hollowed part; the first inner edge and the second inner edge form the corner; the first outer edge and the second outer edge form a first included angle; and the corner is relevant to the frequency.

Description

technical field [0001] The present invention relates to an antenna, especially a loop antenna. Background technique [0002] An antenna is a conversion device designed to transmit or receive electromagnetic waves, which convert electromagnetic waves into electrical currents and vice versa. The voltage standing wave ratio (Voltage Standing Wave Ratio, VSWR) of the antenna is the most commonly used to evaluate the matching condition of the transmission line and the antenna impedance value, and those with ordinary knowledge in this field know Among them, Vmax represents the maximum voltage value of the standing wave, Vmin represents the minimum voltage value of the standing wave, F represents the reflection coefficient, Among them, Z is the impedance value of the antenna, Z0 is the impedance value of the transmission line, so the impedance value Z of the antenna will affect the reflection coefficient, and will indirectly affect the VSWR, that is, the condition of the impedan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q7/00H01Q21/30
Inventor 黄智勇罗国彰
Owner ARCADYAN